System and method for compensating for codec DC offset through a DC blocking channel and modem incorporating the same
US6496124B1 · kind B1 · utility
2Cited by
3References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 24, 2000 |
| Grant date | Dec 17, 2002 |
| Priority date | — |
| Expiry date | Oct 24, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/061
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A system for, and method of, compensating for codec DC offset and a modem incorporating the system or the method. In one embodiment, the system includes: (1) a DC offset compensator that develops and transmits a DC offset indicator signal corresponding to a DC offset present along a transmission path to a receiving codec and (2) a DC offset encoder, coupled to the DC offset compensator, that receives the DC offset indicator signal and applies a time-varying DC offset compensating signal based thereon to a user data symbol stream transmitted along the transmission path.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.